Direct Measurements Of Phase Matching Properties In Small Single Crystals Of New Nonlinear Materials

Abstract

Direct phase matching measurements are a powerful way to characterize the frequency conversion properties of small (submillimeter) crystals of new nonlinear materials. These measurements represent a level of characterization lying between powder tests and detailed refractive index and d coefficient determinations. Since crystals as small as 100um can be studied, a decision to pursue the development of a material can be made at an early stage of crystal growth. Representative data on some new harmonic generators are presented to illustrate various features of the technique.